John Watterson is Gumball's version from another dimension. He is voiced by Lucas Cruikshank.
John is from Elmore of the 3rd Dimension, where John has the highest IQ in all of the dimension. Gumball first sees him in "Little Cobby." John wears a Yankees baseball cap just like Brandon Frangipani has and is 1 year younger than Gumball. John graduated high school at 9 and college at 11. His main enemy is Chai Szing, who wants to do experiments on him. He knows Chai Szing from when he went with his family to Japan and got captured by Chai Szing and his son, Mei Szing. However, he was freed
- He called Cobby Jr. "little boy", which made him angry.